GitHub Advisoryadvisory · Maven
GHSA-4pgc-gfrr-wcmg Keycloak has Improper Access Control that allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false
MEDIUM
Official page ↗
- Aliases
- CVE-2026-4628
- Ecosystem
- Maven
- Packages
- org.keycloak:keycloak-services
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- Weaknesses
- CWE-284
- Reviewed
- 2026-03-26
Affected packages
• Maven org.keycloak:keycloak-services: <= 26.6.0 (no fix yet)
Description
A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access (UMA) resource_set endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control checks on PUT operations to the resource_set endpoint. This issue enables unauthorized modification of protected resources, impacting data integrity.
Related
Alias · CVE (1)
- CVE-2026-4628 A flaw was found in Keycloak. vulnerability
Weakness · CWE (1)
- CWE-284 Improper Access Control weakness